1 /* -*- buffer-read-only: t -*- vi: set ro: */
2 /* DO NOT EDIT! GENERATED AUTOMATICALLY! */
3 /* Hierarchial argument parsing, layered over getopt.
4 Copyright (C) 1995-1999, 2003-2010 Free Software Foundation, Inc.
5 This file is part of the GNU C Library.
6 Written by Miles Bader <miles@gnu.ai.mit.edu>.
8 This program is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
29 #define __need_error_t
36 # define __NTH(fct) fct __THROW
40 /* The __attribute__ feature is available in gcc versions 2.5 and later.
41 The __-protected variants of the attributes 'format' and 'printf' are
42 accepted by gcc versions 2.6.4 (effectively 2.7) and later.
43 We enable __attribute__ only if these are supported too, because
44 gnulib and libintl do '#define printf __printf__' when they override
45 the 'printf' function. */
46 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
47 # define __attribute__(Spec) /* empty */
51 /* GCC 2.95 and later have "__restrict"; C99 compilers have
52 "restrict", and "configure" may have defined "restrict".
53 Other compilers use __restrict, __restrict__, and _Restrict, and
54 'configure' might #define 'restrict' to those words. */
56 # if ! (2 < __GNUC__ || (2 == __GNUC__ && 95 <= __GNUC_MINOR__))
57 # if 199901L <= __STDC_VERSION__
58 # define __restrict restrict
65 #ifndef __error_t_defined
67 # define __error_t_defined
74 /* A description of a particular option. A pointer to an array of
75 these is passed in the OPTIONS field of an argp structure. Each option
76 entry can correspond to one long option and/or one short option; more
77 names for the same option can be added by following an entry in an option
78 array with options having the OPTION_ALIAS flag set. */
81 /* The long option name. For more than one name for the same option, you
82 can use following options with the OPTION_ALIAS flag set. */
85 /* What key is returned for this option. If > 0 and printable, then it's
86 also accepted as a short option. */
89 /* If non-NULL, this is the name of the argument associated with this
90 option, which is required unless the OPTION_ARG_OPTIONAL flag is set. */
96 /* The doc string for this option. If both NAME and KEY are 0, This string
97 will be printed outdented from the normal option column, making it
98 useful as a group header (it will be the first thing printed in its
99 group); in this usage, it's conventional to end the string with a `:'.
101 Write the initial value as N_("TEXT") if you want xgettext to collect
102 it into a POT file. */
105 /* The group this option is in. In a long help message, options are sorted
106 alphabetically within each group, and the groups presented in the order
107 0, 1, 2, ..., n, -m, ..., -2, -1. Every entry in an options array with
108 if this field 0 will inherit the group number of the previous entry, or
109 zero if it's the first one, unless its a group header (NAME and KEY both
110 0), in which case, the previous entry + 1 is the default. Automagic
111 options such as --help are put into group -1. */
115 /* The argument associated with this option is optional. */
116 #define OPTION_ARG_OPTIONAL 0x1
118 /* This option isn't displayed in any help messages. */
119 #define OPTION_HIDDEN 0x2
121 /* This option is an alias for the closest previous non-alias option. This
122 means that it will be displayed in the same help entry, and will inherit
123 fields other than NAME and KEY from the aliased option. */
124 #define OPTION_ALIAS 0x4
126 /* This option isn't actually an option (and so should be ignored by the
127 actual option parser), but rather an arbitrary piece of documentation that
128 should be displayed in much the same manner as the options. If this flag
129 is set, then the option NAME field is displayed unmodified (e.g., no `--'
130 prefix is added) at the left-margin (where a *short* option would normally
131 be displayed), and the documentation string in the normal place. The NAME
132 field will be translated using gettext, unless OPTION_NO_TRANS is set (see
133 below). For purposes of sorting, any leading whitespace and punctuation is
134 ignored, except that if the first non-whitespace character is not `-', this
135 entry is displayed after all options (and OPTION_DOC entries with a leading
136 `-') in the same group. */
137 #define OPTION_DOC 0x8
139 /* This option shouldn't be included in `long' usage messages (but is still
140 included in help messages). This is mainly intended for options that are
141 completely documented in an argp's ARGS_DOC field, in which case including
142 the option in the generic usage list would be redundant. For instance,
143 if ARGS_DOC is "FOO BAR\n-x BLAH", and the `-x' option's purpose is to
144 distinguish these two cases, -x should probably be marked
146 #define OPTION_NO_USAGE 0x10
148 /* Valid only in conjunction with OPTION_DOC. This option disables translation
150 #define OPTION_NO_TRANS 0x20
153 struct argp; /* fwd declare this type */
154 struct argp_state; /* " */
155 struct argp_child; /* " */
157 /* The type of a pointer to an argp parsing function. */
158 typedef error_t (*argp_parser_t) (int key, char *arg,
159 struct argp_state *state);
161 /* What to return for unrecognized keys. For special ARGP_KEY_ keys, such
162 returns will simply be ignored. For user keys, this error will be turned
163 into EINVAL (if the call to argp_parse is such that errors are propagated
164 back to the user instead of exiting); returning EINVAL itself would result
165 in an immediate stop to parsing in *all* cases. */
166 #define ARGP_ERR_UNKNOWN E2BIG /* Hurd should never need E2BIG. XXX */
168 /* Special values for the KEY argument to an argument parsing function.
169 ARGP_ERR_UNKNOWN should be returned if they aren't understood.
171 The sequence of keys to a parsing function is either (where each
172 uppercased word should be prefixed by `ARGP_KEY_' and opt is a user key):
174 INIT opt... NO_ARGS END SUCCESS -- No non-option arguments at all
175 or INIT (opt | ARG)... END SUCCESS -- All non-option args parsed
176 or INIT (opt | ARG)... SUCCESS -- Some non-option arg unrecognized
178 The third case is where every parser returned ARGP_KEY_UNKNOWN for an
179 argument, in which case parsing stops at that argument (returning the
180 unparsed arguments to the caller of argp_parse if requested, or stopping
181 with an error message if not).
183 If an error occurs (either detected by argp, or because the parsing
184 function returned an error value), then the parser is called with
185 ARGP_KEY_ERROR, and no further calls are made. */
187 /* This is not an option at all, but rather a command line argument. If a
188 parser receiving this key returns success, the fact is recorded, and the
189 ARGP_KEY_NO_ARGS case won't be used. HOWEVER, if while processing the
190 argument, a parser function decrements the NEXT field of the state it's
191 passed, the option won't be considered processed; this is to allow you to
192 actually modify the argument (perhaps into an option), and have it
194 #define ARGP_KEY_ARG 0
195 /* There are remaining arguments not parsed by any parser, which may be found
196 starting at (STATE->argv + STATE->next). If success is returned, but
197 STATE->next left untouched, it's assumed that all arguments were consume,
198 otherwise, the parser should adjust STATE->next to reflect any arguments
200 #define ARGP_KEY_ARGS 0x1000006
201 /* There are no more command line arguments at all. */
202 #define ARGP_KEY_END 0x1000001
203 /* Because it's common to want to do some special processing if there aren't
204 any non-option args, user parsers are called with this key if they didn't
205 successfully process any non-option arguments. Called just before
206 ARGP_KEY_END (where more general validity checks on previously parsed
207 arguments can take place). */
208 #define ARGP_KEY_NO_ARGS 0x1000002
209 /* Passed in before any parsing is done. Afterwards, the values of each
210 element of the CHILD_INPUT field, if any, in the state structure is
211 copied to each child's state to be the initial value of the INPUT field. */
212 #define ARGP_KEY_INIT 0x1000003
213 /* Use after all other keys, including SUCCESS & END. */
214 #define ARGP_KEY_FINI 0x1000007
215 /* Passed in when parsing has successfully been completed (even if there are
216 still arguments remaining). */
217 #define ARGP_KEY_SUCCESS 0x1000004
218 /* Passed in if an error occurs. */
219 #define ARGP_KEY_ERROR 0x1000005
221 /* An argp structure contains a set of options declarations, a function to
222 deal with parsing one, documentation string, a possible vector of child
223 argp's, and perhaps a function to filter help output. When actually
224 parsing options, getopt is called with the union of all the argp
225 structures chained together through their CHILD pointers, with conflicts
226 being resolved in favor of the first occurrence in the chain. */
229 /* An array of argp_option structures, terminated by an entry with both
230 NAME and KEY having a value of 0. */
231 const struct argp_option *options;
233 /* What to do with an option from this structure. KEY is the key
234 associated with the option, and ARG is any associated argument (NULL if
235 none was supplied). If KEY isn't understood, ARGP_ERR_UNKNOWN should be
236 returned. If a non-zero, non-ARGP_ERR_UNKNOWN value is returned, then
237 parsing is stopped immediately, and that value is returned from
238 argp_parse(). For special (non-user-supplied) values of KEY, see the
239 ARGP_KEY_ definitions below. */
240 argp_parser_t parser;
242 /* A string describing what other arguments are wanted by this program. It
243 is only used by argp_usage to print the `Usage:' message. If it
244 contains newlines, the strings separated by them are considered
245 alternative usage patterns, and printed on separate lines (lines after
246 the first are prefix by ` or: ' instead of `Usage:'). */
247 const char *args_doc;
249 /* If non-NULL, a string containing extra text to be printed before and
250 after the options in a long help message (separated by a vertical tab
252 Write the initial value as N_("BEFORE-TEXT") "\v" N_("AFTER-TEXT") if
253 you want xgettext to collect the two pieces of text into a POT file. */
256 /* A vector of argp_children structures, terminated by a member with a 0
257 argp field, pointing to child argps should be parsed with this one. Any
258 conflicts are resolved in favor of this argp, or early argps in the
259 CHILDREN list. This field is useful if you use libraries that supply
260 their own argp structure, which you want to use in conjunction with your
262 const struct argp_child *children;
264 /* If non-zero, this should be a function to filter the output of help
265 messages. KEY is either a key from an option, in which case TEXT is
266 that option's help text, or a special key from the ARGP_KEY_HELP_
267 defines, below, describing which other help text TEXT is. The function
268 should return either TEXT, if it should be used as-is, a replacement
269 string, which should be malloced, and will be freed by argp, or NULL,
270 meaning `print nothing'. The value for TEXT is *after* any translation
271 has been done, so if any of the replacement text also needs translation,
272 that should be done by the filter function. INPUT is either the input
273 supplied to argp_parse, or NULL, if argp_help was called directly. */
274 char *(*help_filter) (int __key, const char *__text, void *__input);
276 /* If non-zero the strings used in the argp library are translated using
277 the domain described by this string. Otherwise the currently installed
278 default domain is used. */
279 const char *argp_domain;
282 /* Possible KEY arguments to a help filter function. */
283 #define ARGP_KEY_HELP_PRE_DOC 0x2000001 /* Help text preceeding options. */
284 #define ARGP_KEY_HELP_POST_DOC 0x2000002 /* Help text following options. */
285 #define ARGP_KEY_HELP_HEADER 0x2000003 /* Option header string. */
286 #define ARGP_KEY_HELP_EXTRA 0x2000004 /* After all other documentation;
287 TEXT is NULL for this key. */
288 /* Explanatory note emitted when duplicate option arguments have been
290 #define ARGP_KEY_HELP_DUP_ARGS_NOTE 0x2000005
291 #define ARGP_KEY_HELP_ARGS_DOC 0x2000006 /* Argument doc string. */
293 /* When an argp has a non-zero CHILDREN field, it should point to a vector of
294 argp_child structures, each of which describes a subsidiary argp. */
297 /* The child parser. */
298 const struct argp *argp;
300 /* Flags for this child. */
303 /* If non-zero, an optional header to be printed in help output before the
304 child options. As a side-effect, a non-zero value forces the child
305 options to be grouped together; to achieve this effect without actually
306 printing a header string, use a value of "". */
309 /* Where to group the child options relative to the other (`consolidated')
310 options in the parent argp; the values are the same as the GROUP field
311 in argp_option structs, but all child-groupings follow parent options at
312 a particular group level. If both this field and HEADER are zero, then
313 they aren't grouped at all, but rather merged with the parent options
314 (merging the child's grouping levels with the parents). */
318 /* Parsing state. This is provided to parsing functions called by argp,
319 which may examine and, as noted, modify fields. */
322 /* The top level ARGP being parsed. */
323 const struct argp *root_argp;
325 /* The argument vector being parsed. May be modified. */
329 /* The index in ARGV of the next arg that to be parsed. May be modified. */
332 /* The flags supplied to argp_parse. May be modified. */
335 /* While calling a parsing function with a key of ARGP_KEY_ARG, this is the
336 number of the current arg, starting at zero, and incremented after each
337 such call returns. At all other times, this is the number of such
338 arguments that have been processed. */
341 /* If non-zero, the index in ARGV of the first argument following a special
342 `--' argument (which prevents anything following being interpreted as an
343 option). Only set once argument parsing has proceeded past this point. */
346 /* An arbitrary pointer passed in from the user. */
348 /* Values to pass to child parsers. This vector will be the same length as
349 the number of children for the current parser. */
352 /* For the parser's use. Initialized to 0. */
355 /* The name used when printing messages. This is initialized to ARGV[0],
356 or PROGRAM_INVOCATION_NAME if that is unavailable. */
359 /* Streams used when argp prints something. */
360 FILE *err_stream; /* For errors; initialized to stderr. */
361 FILE *out_stream; /* For information; initialized to stdout. */
363 void *pstate; /* Private, for use by argp. */
366 /* Flags for argp_parse (note that the defaults are those that are
367 convenient for program command line parsing): */
369 /* Don't ignore the first element of ARGV. Normally (and always unless
370 ARGP_NO_ERRS is set) the first element of the argument vector is
371 skipped for option parsing purposes, as it corresponds to the program name
372 in a command line. */
373 #define ARGP_PARSE_ARGV0 0x01
375 /* Don't print error messages for unknown options to stderr; unless this flag
376 is set, ARGP_PARSE_ARGV0 is ignored, as ARGV[0] is used as the program
377 name in the error messages. This flag implies ARGP_NO_EXIT (on the
378 assumption that silent exiting upon errors is bad behaviour). */
379 #define ARGP_NO_ERRS 0x02
381 /* Don't parse any non-option args. Normally non-option args are parsed by
382 calling the parse functions with a key of ARGP_KEY_ARG, and the actual arg
383 as the value. Since it's impossible to know which parse function wants to
384 handle it, each one is called in turn, until one returns 0 or an error
385 other than ARGP_ERR_UNKNOWN; if an argument is handled by no one, the
386 argp_parse returns prematurely (but with a return value of 0). If all
387 args have been parsed without error, all parsing functions are called one
388 last time with a key of ARGP_KEY_END. This flag needn't normally be set,
389 as the normal behavior is to stop parsing as soon as some argument can't
391 #define ARGP_NO_ARGS 0x04
393 /* Parse options and arguments in the same order they occur on the command
394 line -- normally they're rearranged so that all options come first. */
395 #define ARGP_IN_ORDER 0x08
397 /* Don't provide the standard long option --help, which causes usage and
398 option help information to be output to stdout, and exit (0) called. */
399 #define ARGP_NO_HELP 0x10
401 /* Don't exit on errors (they may still result in error messages). */
402 #define ARGP_NO_EXIT 0x20
404 /* Use the gnu getopt `long-only' rules for parsing arguments. */
405 #define ARGP_LONG_ONLY 0x40
407 /* Turns off any message-printing/exiting options. */
408 #define ARGP_SILENT (ARGP_NO_EXIT | ARGP_NO_ERRS | ARGP_NO_HELP)
410 /* Parse the options strings in ARGC & ARGV according to the options in ARGP.
411 FLAGS is one of the ARGP_ flags above. If ARG_INDEX is non-NULL, the
412 index in ARGV of the first unparsed option is returned in it. If an
413 unknown option is present, ARGP_ERR_UNKNOWN is returned; if some parser
414 routine returned a non-zero value, it is returned; otherwise 0 is
415 returned. This function may also call exit unless the ARGP_NO_HELP flag
416 is set. INPUT is a pointer to a value to be passed in to the parser. */
417 extern error_t argp_parse (const struct argp *__restrict __argp,
418 int /*argc*/, char **__restrict /*argv*/,
419 unsigned __flags, int *__restrict __arg_index,
420 void *__restrict __input);
421 extern error_t __argp_parse (const struct argp *__restrict __argp,
422 int /*argc*/, char **__restrict /*argv*/,
423 unsigned __flags, int *__restrict __arg_index,
424 void *__restrict __input);
426 /* Global variables. */
428 /* GNULIB makes sure both program_invocation_name and
429 program_invocation_short_name are available */
430 #ifdef GNULIB_PROGRAM_INVOCATION_NAME
431 extern char *program_invocation_name;
432 # undef HAVE_DECL_PROGRAM_INVOCATION_NAME
433 # define HAVE_DECL_PROGRAM_INVOCATION_NAME 1
436 #ifdef GNULIB_PROGRAM_INVOCATION_SHORT_NAME
437 extern char *program_invocation_short_name;
438 # undef HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME
439 # define HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME 1
442 /* If defined or set by the user program to a non-zero value, then a default
443 option --version is added (unless the ARGP_NO_HELP flag is used), which
444 will print this string followed by a newline and exit (unless the
445 ARGP_NO_EXIT flag is used). Overridden by ARGP_PROGRAM_VERSION_HOOK. */
446 extern const char *argp_program_version;
448 /* If defined or set by the user program to a non-zero value, then a default
449 option --version is added (unless the ARGP_NO_HELP flag is used), which
450 calls this function with a stream to print the version to and a pointer to
451 the current parsing state, and then exits (unless the ARGP_NO_EXIT flag is
452 used). This variable takes precedent over ARGP_PROGRAM_VERSION. */
453 extern void (*argp_program_version_hook) (FILE *__restrict __stream,
454 struct argp_state *__restrict
457 /* If defined or set by the user program, it should point to string that is
458 the bug-reporting address for the program. It will be printed by
459 argp_help if the ARGP_HELP_BUG_ADDR flag is set (as it is by various
460 standard help messages), embedded in a sentence that says something like
461 `Report bugs to ADDR.'. */
462 extern const char *argp_program_bug_address;
464 /* The exit status that argp will use when exiting due to a parsing error.
465 If not defined or set by the user program, this defaults to EX_USAGE from
467 extern error_t argp_err_exit_status;
469 /* Flags for argp_help. */
470 #define ARGP_HELP_USAGE 0x01 /* a Usage: message. */
471 #define ARGP_HELP_SHORT_USAGE 0x02 /* " but don't actually print options. */
472 #define ARGP_HELP_SEE 0x04 /* a `Try ... for more help' message. */
473 #define ARGP_HELP_LONG 0x08 /* a long help message. */
474 #define ARGP_HELP_PRE_DOC 0x10 /* doc string preceding long help. */
475 #define ARGP_HELP_POST_DOC 0x20 /* doc string following long help. */
476 #define ARGP_HELP_DOC (ARGP_HELP_PRE_DOC | ARGP_HELP_POST_DOC)
477 #define ARGP_HELP_BUG_ADDR 0x40 /* bug report address */
478 #define ARGP_HELP_LONG_ONLY 0x80 /* modify output appropriately to
479 reflect ARGP_LONG_ONLY mode. */
481 /* These ARGP_HELP flags are only understood by argp_state_help. */
482 #define ARGP_HELP_EXIT_ERR 0x100 /* Call exit(1) instead of returning. */
483 #define ARGP_HELP_EXIT_OK 0x200 /* Call exit(0) instead of returning. */
485 /* The standard thing to do after a program command line parsing error, if an
486 error message has already been printed. */
487 #define ARGP_HELP_STD_ERR \
488 (ARGP_HELP_SEE | ARGP_HELP_EXIT_ERR)
489 /* The standard thing to do after a program command line parsing error, if no
490 more specific error message has been printed. */
491 #define ARGP_HELP_STD_USAGE \
492 (ARGP_HELP_SHORT_USAGE | ARGP_HELP_SEE | ARGP_HELP_EXIT_ERR)
493 /* The standard thing to do in response to a --help option. */
494 #define ARGP_HELP_STD_HELP \
495 (ARGP_HELP_SHORT_USAGE | ARGP_HELP_LONG | ARGP_HELP_EXIT_OK \
496 | ARGP_HELP_DOC | ARGP_HELP_BUG_ADDR)
498 /* Output a usage message for ARGP to STREAM. FLAGS are from the set
500 extern void argp_help (const struct argp *__restrict __argp,
501 FILE *__restrict __stream,
502 unsigned __flags, char *__restrict __name);
503 extern void __argp_help (const struct argp *__restrict __argp,
504 FILE *__restrict __stream, unsigned __flags,
507 /* The following routines are intended to be called from within an argp
508 parsing routine (thus taking an argp_state structure as the first
509 argument). They may or may not print an error message and exit, depending
510 on the flags in STATE -- in any case, the caller should be prepared for
511 them *not* to exit, and should return an appropiate error after calling
512 them. [argp_usage & argp_error should probably be called argp_state_...,
513 but they're used often enough that they should be short] */
515 /* Output, if appropriate, a usage message for STATE to STREAM. FLAGS are
516 from the set ARGP_HELP_*. */
517 extern void argp_state_help (const struct argp_state *__restrict __state,
518 FILE *__restrict __stream,
519 unsigned int __flags);
520 extern void __argp_state_help (const struct argp_state *__restrict __state,
521 FILE *__restrict __stream,
522 unsigned int __flags);
524 #if _LIBC || !defined __USE_EXTERN_INLINES
525 /* Possibly output the standard usage message for ARGP to stderr and exit. */
526 extern void argp_usage (const struct argp_state *__state);
527 extern void __argp_usage (const struct argp_state *__state);
530 /* If appropriate, print the printf string FMT and following args, preceded
531 by the program name and `:', to stderr, and followed by a `Try ... --help'
532 message, then exit (1). */
533 extern void argp_error (const struct argp_state *__restrict __state,
534 const char *__restrict __fmt, ...)
535 __attribute__ ((__format__ (__printf__, 2, 3)));
536 extern void __argp_error (const struct argp_state *__restrict __state,
537 const char *__restrict __fmt, ...)
538 __attribute__ ((__format__ (__printf__, 2, 3)));
540 /* Similar to the standard gnu error-reporting function error(), but will
541 respect the ARGP_NO_EXIT and ARGP_NO_ERRS flags in STATE, and will print
542 to STATE->err_stream. This is useful for argument parsing code that is
543 shared between program startup (when exiting is desired) and runtime
544 option parsing (when typically an error code is returned instead). The
545 difference between this function and argp_error is that the latter is for
546 *parsing errors*, and the former is for other problems that occur during
547 parsing but don't reflect a (syntactic) problem with the input. */
548 extern void argp_failure (const struct argp_state *__restrict __state,
549 int __status, int __errnum,
550 const char *__restrict __fmt, ...)
551 __attribute__ ((__format__ (__printf__, 4, 5)));
552 extern void __argp_failure (const struct argp_state *__restrict __state,
553 int __status, int __errnum,
554 const char *__restrict __fmt, ...)
555 __attribute__ ((__format__ (__printf__, 4, 5)));
557 #if _LIBC || !defined __USE_EXTERN_INLINES
558 /* Returns true if the option OPT is a valid short option. */
559 extern int _option_is_short (const struct argp_option *__opt) __THROW;
560 extern int __option_is_short (const struct argp_option *__opt) __THROW;
562 /* Returns true if the option OPT is in fact the last (unused) entry in an
564 extern int _option_is_end (const struct argp_option *__opt) __THROW;
565 extern int __option_is_end (const struct argp_option *__opt) __THROW;
568 /* Return the input field for ARGP in the parser corresponding to STATE; used
569 by the help routines. */
570 extern void *_argp_input (const struct argp *__restrict __argp,
571 const struct argp_state *__restrict __state)
573 extern void *__argp_input (const struct argp *__restrict __argp,
574 const struct argp_state *__restrict __state)
577 #ifdef __USE_EXTERN_INLINES
580 # define __argp_usage argp_usage
581 # define __argp_state_help argp_state_help
582 # define __option_is_short _option_is_short
583 # define __option_is_end _option_is_end
588 /* GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
589 inline semantics, unless -fgnu89-inline is used. It defines a macro
590 __GNUC_STDC_INLINE__ to indicate this situation or a macro
591 __GNUC_GNU_INLINE__ to indicate the opposite situation.
592 GCC 4.2 with -std=c99 or -std=gnu99 implements the GNU C inline
593 semantics but warns, unless -fgnu89-inline is used:
594 warning: C99 inline functions are not supported; using GNU89
595 warning: to disable this warning use -fgnu89-inline or the gnu_inline function attribute
596 It defines a macro __GNUC_GNU_INLINE__ to indicate this situation. */
597 # if defined __GNUC_STDC_INLINE__
598 # define ARGP_EI __inline__
599 # elif defined __GNUC_GNU_INLINE__
600 # define ARGP_EI extern __inline__ __attribute__ ((__gnu_inline__))
602 # define ARGP_EI extern __inline__
605 /* With other compilers, assume the ISO C99 meaning of 'inline', if
606 the compiler supports 'inline' at all. */
607 # define ARGP_EI inline
612 __argp_usage (const struct argp_state *__state)
614 __argp_state_help (__state, stderr, ARGP_HELP_STD_USAGE);
618 __NTH (__option_is_short (const struct argp_option *__opt))
620 if (__opt->flags & OPTION_DOC)
624 int __key = __opt->key;
625 return __key > 0 && __key <= UCHAR_MAX && isprint (__key);
630 __NTH (__option_is_end (const struct argp_option *__opt))
632 return !__opt->key && !__opt->name && !__opt->doc && !__opt->group;
637 # undef __argp_state_help
638 # undef __option_is_short
639 # undef __option_is_end
641 #endif /* Use extern inlines. */